PMID- 34699032 OWN - NLM STAT- MEDLINE DCOM- 20220314 LR - 20231106 IS - 1179-1888 (Electronic) IS - 1175-0561 (Linking) VI - 23 IP - 2 DP - 2022 Mar TI - Skin Toxicities with Cyclin-Dependent Kinase 4/6 Inhibitors in Breast Cancer: Signals from Disproportionality Analysis of the FDA Adverse Event Reporting System. PG - 247-255 LID - 10.1007/s40257-021-00645-0 [doi] AB - BACKGROUND: Cyclin-dependent kinase (CDK)-4/6 inhibitors have been associated with dermatologic reactions, especially alopecia, in pivotal trials. OBJECTIVE: We aimed to comprehensively describe skin toxicities with CDK4/6 inhibitors reported in the real world through the US FDA Adverse Event Reporting System (FAERS). METHODS: Cutaneous adverse events (AEs) were characterized in terms of spectrum and clinical features, including seriousness (with fatality proportion), latency, and discontinuation. Disproportionality analyses were performed through the reporting odds ratio (ROR) and 95% confidence interval (CI) by comparing CDK4/6 inhibitors with other anticancer drugs used in breast cancer. RESULTS: As of December 2020, a total of 7986 cutaneous events were reported with CDK4/6 inhibitors (15% of total AEs with CDK4/6 inhibitors), mainly by consumers (39.6%), with 43.5% classified as serious and 25% requiring discontinuation. In 49% of the cases, five or more noncutaneous events were co-reported. The most frequently reported cutaneous events were alopecia (N = 3528), rash (N = 1493), and pruritus (N = 1211): rashes were recorded in the first month (median onset 28 days), whereas alopecia and nail alterations were recorded after a median of 67 and 112 days, respectively. Several cutaneous AEs were associated with increased reporting, including vitiligo (N = 6; ROR 8.88; 95% CI 2.95-22.46) and bullous dermatitis with ribociclib (N = 7; ROR 2.90; 95% CI 1.13-6.27); erythema multiforme with abemaciclib (N = 9; ROR 5.80; 95% CI 2.57-11.48); onychoclasis (N = 142, ROR 2.27; 95% CI 1.83-2.79) and trichorrhexis (N = 22; ROR 3.27; 95% CI 1.78-5.93) with palbociclib. CONCLUSIONS: Although causality cannot be demonstrated, a diverse reporting pattern of cutaneous AEs emerged from FAERS, including dermal/epidermal conditions, hair/nail disorders, and serious bullous conditions, with variable onsets and a remarkable proportion of discontinuations. The potential differential reporting among CDK4/6 inhibitors deserves further investigation. CI - (c) 2021. The Author(s), under exclusive licence to Springer Nature Switzerland AG. FAU - Raschi, Emanuel AU - Raschi E AUID- ORCID: 0000-0003-0487-7996 AD - Pharmacology Unit, Department of Medical and Surgical Sciences, Alma Mater Studiorum-University of Bologna, Via Irnerio 48, 40126, Bologna, Italy. emanuel.raschi@unibo.it. FAU - Fusaroli, Michele AU - Fusaroli M AD - Pharmacology Unit, Department of Medical and Surgical Sciences, Alma Mater Studiorum-University of Bologna, Via Irnerio 48, 40126, Bologna, Italy. FAU - La Placa, Michelangelo AU - La Placa M AD - Dermatology Division, Department of Experimental, Diagnostic and Specialty Medicine, Policlinico S. Orsola-Malpighi, University of Bologna, Bologna, Italy. FAU - Ardizzoni, Andrea AU - Ardizzoni A AD - Medical Oncology Unit, Department of Experimental, Diagnostic and Specialty Medicine, Policlinico S. Orsola-Malpighi, Alma Mater Studiorum-University of Bologna, Bologna, Italy. AD - IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy. FAU - Zamagni, Claudio AU - Zamagni C AD - IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy. FAU - Poluzzi, Elisabetta AU - Poluzzi E AD - Pharmacology Unit, Department of Medical and Surgical Sciences, Alma Mater Studiorum-University of Bologna, Via Irnerio 48, 40126, Bologna, Italy. FAU - De Ponti, Fabrizio AU - De Ponti F AD - Pharmacology Unit, Department of Medical and Surgical Sciences, Alma Mater Studiorum-University of Bologna, Via Irnerio 48, 40126, Bologna, Italy. LA - eng PT - Journal Article DEP - 20211026 PL - New Zealand TA - Am J Clin Dermatol JT - American journal of clinical dermatology JID - 100895290 RN - 0 (Protein Kinase Inhibitors) RN - EC 2.7.11.22 (CDK4 protein, human) RN - EC 2.7.11.22 (CDK6 protein, human) RN - EC 2.7.11.22 (Cyclin-Dependent Kinase 4) RN - EC 2.7.11.22 (Cyclin-Dependent Kinase 6) SB - IM CIN - Indian J Pharmacol. 2023 May-Jun;55(3):190-191. PMID: 37555416 MH - *Breast Neoplasms/drug therapy/enzymology MH - Cyclin-Dependent Kinase 4/antagonists & inhibitors MH - Cyclin-Dependent Kinase 6/antagonists & inhibitors MH - Female MH - Humans MH - Odds Ratio MH - Pharmacovigilance MH - *Protein Kinase Inhibitors MH - United States/epidemiology MH - United States Food and Drug Administration EDAT- 2021/10/27 06:00 MHDA- 2022/03/15 06:00 CRDT- 2021/10/26 12:36 PHST- 2021/10/06 00:00 [accepted] PHST- 2021/10/27 06:00 [pubmed] PHST- 2022/03/15 06:00 [medline] PHST- 2021/10/26 12:36 [entrez] AID - 10.1007/s40257-021-00645-0 [pii] AID - 10.1007/s40257-021-00645-0 [doi] PST - ppublish SO - Am J Clin Dermatol. 2022 Mar;23(2):247-255. doi: 10.1007/s40257-021-00645-0. Epub 2021 Oct 26.